Costumes in Bayonetta 2 cost a pretty penny but allow players to customize the titular protagonist in a variety of silly ways. Want to play the entire game in a Samus costume? That's absolutely possible.

First players must purchase Mirrors in Rodin's shop, which cost 100,000 Halos. That only unlocks the ability to purchase certain costumes, which also cost 100,000 Halos. So don't go on a shopping spree if you eventually want to unlock costumes.

Super Mirror 2

This one if available from the start of the game and unlocks the following costumes:

Dress

Metal Witch

Police Woman

Schoolgirl

Uniformed (only for Jeanne)

Witch Apprentice

Super Mirror 64-2

This one if available from the start of the game and unlocks the following costumes, all of which contain special abilities/perks as well:

Fox McCloud

Galactic Bounty Hunter (Samus)

Hero of Hyrule (Link)

Mushroom Kingdom Princess (Peach)

Sarasaland Princess (Daisy)

Super Mirror

This one requires players to beat the game on 2nd Climax difficulty (or higher) and unlocks the following costumes:

Old & Old Hairstyle

Nun & Old Hairstyle

Uniformed & Old Hairstyle (only for Jeanne)

Super Mirror 64

This one requires players to beat the game on 3rd Climax difficulty and unlocks the following costumes: